The Flash Season 8, Episode 20 Negative (2) Drama IMDB 7.8 Country United States Duration 44 min Air Date 2022-06-29 Actors Grant Gustin (Barry Allen / The Flash) Candice Patton (Iris West-Allen) Danielle Panabaker (Khione) Danielle Nicolet (Cecile Horton) Kayla Compton (Allegra Garcia) Brandon McKnight (Chester P. Runk) Jon Cor (Mark Blaine / Chillblaine) Overview With The Flash still reeling from everything that just happened, the rest of the team rallies to support him when he needs it the most.